[PATCH v3 2/2] PM / devfreq: mediatek: Introduce MediaTek CCI devfreq driver

Chanwoo Choi cwchoi00 at gmail.com
Fri May 6 11:57:34 PDT 2022


Hi Johnson,


On 22. 4. 25. 21:55, Johnson Wang wrote:
> We introduce a devfreq driver for the MediaTek Cache Coherent Interconnect
> (CCI) used by some MediaTek SoCs.
> 
> In this driver, we use the passive devfreq driver to get target frequencies
> and adjust voltages accordingly. In MT8183 and MT8186, the MediaTek CCI
> is supplied by the same regulators with the little core CPUs.
> 
> Signed-off-by: Johnson Wang <johnson.wang at mediatek.com>
> Signed-off-by: Jia-Wei Chang <jia-wei.chang at mediatek.com>
> ---
> This patch depends on "devfreq-testing"[1].
> [1]https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/log/?h=devfreq-testing
> ---
>   drivers/devfreq/Kconfig           |  10 +
>   drivers/devfreq/Makefile          |   1 +
>   drivers/devfreq/mtk-cci-devfreq.c | 474 ++++++++++++++++++++++++++++++
>   3 files changed, 485 insertions(+)
>   create mode 100644 drivers/devfreq/mtk-cci-devfreq.c
Acked-by: Chanwoo Choi <cw00.choi at samsung.com>

I updated the passive governor on devfreq-testing[1] branch
[1] 
https://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux.git/log/?h=devfreq-testing

Could you please test your patches based on devfreq-testing[1] branch?


-- 
Best Regards,
Samsung Electronics
Chanwoo Choi



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